/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/chrome/autohide_tabstoolbar_v2.css made available under Mozilla Public License v. 2.0
See the above repository for updates as well as full license text. */

/* Requires Firefox 133 */

:root{
  --uc-tabs-hide-animation-duration: 48ms;
  --uc-tabs-hide-animation-delay: 200ms;
}

@media -moz-pref("sidebar.verticalTabs"){
  #sidebar-main{
    overflow: visible !important;
    max-width: var(--tab-collapsed-width) !important;
    z-index: var(--browser-area-z-index-toolbox-while-animating);
    transition: z-index 0s linear var(--uc-tabs-hide-duration);
    background: inherit;
  }
  sidebar-main{
    --tab-pinned-horizontal-count: 5; /* This needs to match whatever is used in sidebar-main.css - currently 5 */
    background: inherit;
    overflow: hidden;
    min-width: var(--tab-collapsed-width);
    transition: min-width var(--uc-tabs-hide-animation-duration) ease-out var(--uc-tabs-hide-animation-delay);
    border-inline: 0.01px solid var(--chrome-content-separator-color);
    border-inline-width: 0 0.01px;
    &:is([sidebar-positionend],[positionend]){
      transition-property: min-width, transform;
      border-inline-width: 0.01px 0;
    }
  }
  :where(#navigator-toolbox[movingtab] + #browser > #sidebar-main) > sidebar-main[expanded],
  sidebar-main[expanded]:hover{
    min-width: calc(var(--tab-pinned-horizontal-count) * var(--tab-pinned-min-width-expanded) + 2 * var(--tab-pinned-container-margin-inline-expanded) + 1px);
    transition-delay: 0ms !important;
    &:is([sidebar-positionend],[positionend]){
      transform: translateX(calc(var(--tab-collapsed-width) - 100%));
    }
  }
  #sidebar-wrapper{
    background: inherit;
  }
}
@media not -moz-pref("sidebar.verticalTabs"){
  :root:not([customizing],[chromehidden~="menubar"]) #navigator-toolbox:has(> :is(#toolbar-menubar,#TabsToolbar):hover),
  :root:not([customizing],[chromehidden~="menubar"]) #TabsToolbar{
    margin-bottom: calc(0px - 2 * var(--tab-block-margin) - var(--tab-min-height));
  }
  #toolbar-menubar:is([autohide=""],[autohide="true"]) + #TabsToolbar:not(:hover){
    -moz-window-dragging: no-drag !important;
  }
  #toolbar-menubar:is([autohide=""],[autohide="true"]) + #TabsToolbar:not(:hover,[customizing])::before{
    content: "";
    display: flex;
    position: absolute;
    height: 6px;
    width: 100vw;
    visibility: visible;
  }
  #navigator-toolbox{
    transition: margin-bottom var(--uc-tabs-hide-animation-duration) ease-out var(--uc-tabs-hide-animation-delay) !important;
    --browser-area-z-index-toolbox: 3;
  }
  #TabsToolbar:not([customizing]){
    visibility: hidden;
    position: relative;
    z-index: 1;
    transition: visibility 0ms linear var(--uc-tabs-hide-animation-delay),
                margin-bottom var(--uc-tabs-hide-animation-duration) ease-out var(--uc-tabs-hide-animation-delay) !important;
  }
  #mainPopupSet:has( > #tab-group-editor > [panelopen], > #tabgroup-preview-panel[panelopen]) ~ #navigator-toolbox,
  #navigator-toolbox:has(> :is(#toolbar-menubar,#TabsToolbar):hover),
  #navigator-toolbox[movingtab]{
    transition-delay: 0s !important;
    margin-bottom: calc(0px - 2 * var(--tab-block-margin) - var(--tab-min-height));
    > #TabsToolbar{
      visibility: visible;
      margin-bottom: 0px;
      transition-delay: 0ms, 0ms !important;
    }
  }
  @media -moz-pref("userchrome.autohidetabs.show-while-inactive.enabled"){
    #navigator-toolbox:-moz-window-inactive{
      margin-bottom: calc(0px - 2 * var(--tab-block-margin) - var(--tab-min-height));
      > #TabsToolbar{
        visibility: visible;
        margin-bottom: 0px;
      }
    }
  }
  /* These rules make sure that height of tabs toolbar doesn't exceed tab-min-height */
  #tabbrowser-tabs:not([secondarytext-unsupported]) .tab-label-container{
    max-height: var(--tab-min-height);
  }
  .tab-label{ line-height: 20px !important; }
  :root[uidensity="compact"] .tab-label{ line-height: 18px !important; }
}